Kazan Helicopters Mi-17-1V Flight Manual page 40

Ml<·17-1B. Flight manual
2.7. APU
A~1-9B
limitations
(1) The maximum operational altitude for the AVl-98 APU engine (starting, air
bleed for starting the TB3-117BM engine, operation in generator mode) is
4000 m.
(2) The maximum allowed TGT of AVl-9B APU engine:
At start 880°C
At idle 720°C
At air bleed and generator modes 750°C
(3) The maximum continuousoperation time in generator mode is 30 minutes.
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